| 单词 | top plug |
| 释义 | top plug in the Oil and Gas Industry (tɒp plʌg) Word forms: (regular plural) top plugs noun (Extractive engineering: Field development, Drilling) plugA top plug is a rubber seal in the casing string, which stops the fluid used in drilling from contaminating cement slurry. The top plug and the sack should be used to push the cement ahead and to prevent mixture withthe mud. The bottom plug precedes the cement down the casing, and the top plug follows the cement and precedes the displacement fluid. A top plug is a rubber seal in the casing string, which stops the fluid used in drilling fromcontaminating cement slurry. |
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